Adapter base with ball mount



FIG. 1 is a top front right side perspective view showing my new design;

FIG. 2 is a top front left side perspective view thereof;

FIG. 3 is a top rear right side perspective view thereof;

FIG. 4 is a bottom perspective view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is a top elevational view thereof; and,

FIG. 10 is a bottom elevational view thereof.

The broken lines illustrate portions of the adapter base with ball mount and form no part of the claimed design. 

CLAIM The ornamental design for an adapter base with ball mount, as shown and described. 